It doesn't sound like the usual RSD cases that I've read over the years..
We have sticky threads at top section of each health condition, if you want to explore those for more info..

Does chiro have a low level laser? also called cold or soft laser
Interferential stim? like a TENS or only better for cell health & treats deeper tissue
ultrasound tx for the tight muscles?

Slightly alternative things..
acupuncture
naturopath
bodyworker

Supplements if you aren't on a lot of meds..check online for interactions if you consider them...
MSM
Calcium/mag blend
Grape seed extract

Maybe severe myofascial pain - Google Search